[ocaml-platform] opam show problem

Louis Gesbert

2016-11-21 13:58:27 UTC

Le 2016-11-21 14:55, Immanuel Litzroth a écrit :
> The problem with
> opam list -i <package>
> is that it doesn't seem to do versions.
>
> $ opam list -i spreadgenerator
> # Installed packages for BUILDSYSTEM:
> spreadgenerator 6.0.0.1
> $ opam list -i spreadgenerator=6.0.0.1

using "spreadgenerator.6.0.0.1" instead should work!

query operations are known to be somewhat lacking in 1.2.2 and have been
thoroughly improved for the upcoming 2.0 version.

> No packages found.
>
> Which opam show has no problems with. I need to check if a version of
> a package is
> installed (version optionally passed with =x.x...).
> Immanuel
>
> -------------------------
>
> FROM: Louis Gesbert <***@antislash.info>
> SENT: Monday, November 21, 2016 2:15:16 PM
> TO: Immanuel Litzroth
> CC: ***@lists.ocaml.org
> SUBJECT: Re: [ocaml-platform] opam show problem
>
> This is indeed unclear, and has been already improved in the 2.0 alpha
>
> builds: the output is now separated in two sections, showing that the
> details printed are specific to a given version (chosen from installed
>
> or latest):
>
> $ opam show lwt
>
> =-=- lwt: information on all versions
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> name lwt
> all-installed-versions 2.4.8 [4.02.1 4.01.0+ocp1-20150202] 2.5.2
>
> [system 4.02.3 4.04]
> 2.6.0 [4.03.0]
> all-versions 2.3.2 2.4.0 2.4.1 2.4.2 2.4.3 2.4.4
> 2.4.5 2.4.6 2.4.7 2.4.8
> 2.5.0 2.5.1 2.5.2 2.6.0
>
> =-=- Version-specific details
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> version 2.6.0
> repository default
> url.src: https://github.com/ocsigen/lwt/archive/2.6.0.tar.gz
> [1]
> [etc]
>
> `--where` only show where the metadata was found, it doesn't relate to
>
> the contents of the package itself. `opam list` is the right tool if
> you
> want just to check whether the package is installed.
>
> Best,
> Louis Gesbert -- OCamlPro
>
> Le 2016-11-21 11:10, Immanuel Litzroth a écrit :
>> opam show documentation says:
>> "
>>
>> The information block consists of the name of the package, the
>> installed version if this package is installed in the
> currently
>>
>> selected compiler,.."
>>
>> I have a switch BUILDSYSTEM that does not contain lwt.
>> 1) it's not under ~/.opam/BUILDSYSTEM/lib
>> 2) linking with the package lwt in this switch does not work.
>> Still "opam show lwt" does give me a version as in it's output:
>>>>>
>>
>> opam show lwt
>> package: lwt
>> version: 2.6.0
>> ...
>>>>>
>> ocaml show where lwt does show this:
>>>>>
>>
>> opam show --where lwt
>> /home/immanuel/.opam/repo/default/packages/lwt/lwt.2.6.0/opam
>>>>>
>> I do have it installed in other switches.
>>
>> Are my expectations wrong, or is this a bug?
>> Thanks in advance,
>> Immanuel
>>
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> Links:
> ------
> [1] https://github.com/ocsigen/lwt/archive/2.6.0.tar.gz